Description: Operating voltage: DC 3-35 V Maximum control Power: 90 W Quiescent current: 0.015 A (standby) PWM duty cycle: 1%-100% PWM frequency: 10 kHz Specification: Module board color: Red 100% Brand New and High Quality Size: Approx. 30x24mm/ 1.18x0.94 inch Suitable for Students, teachers, traders, factories, e-lovers, ect. Package Includes: 1 Piece of PWM Speed Controller